Objective To investigate the clinical outcomes of treating fractures of the middle-inferior humerus with double plate fixation via the upper arm posterior approach through the inner edge of the joint triceps tendon.Methods From May 2013 through May 2015,32 fractures of the middle-inferior humerus were treated with open reduction and double plate fixation by the upper arm posterior approach via the inner edge of the joint triceps tendon.They were 19 males and 13 females,aged from 17 to 54 years (mean,36.8 years).Involved were 14 left sides and 18 right sides.By AO classification,21 cases were type B and 11 type C,all closed fractures.X-ray examinations were regularly conducted at postoperative follow-ups;function of the elbow joint was assessed according to the Jupiter elbow joint grading system at the final follow-up.Results All the 32 patients were followed up for 6 to 20 months (average,11.5 months).The fractures healed after 4 to 7 months (average,5.0 months).The flexion ranged from 120° to 135° (average,125°),and the extension ranged from 0 to 8° (average,5°).There were no such complications as postoperative infection,plate breakage,or nonunion.According to the Jupiter elbow joint grading system at the final follow-up,there were 15 excellent cases,14 good ones,and 3 fair ones,giving a good to excellent rate of 90.6％.Conclusion Open reduction and double plate fixation by the upper arm posterior approach via the inner edge of the joint triceps tendon is simple for fractures of the middle-inferior humerus and leads to satisfactory reduction,reliable fixation,and fine outcomes.

Carrier-free multi-component self-assembled nano-systems have attracted widespread attention owing to their easy preparation, high drug-loading efficiency, and excellent therapeutic efficacy. Herein, MnAs-ICG nanospike was generated by self-assembly of indocyanine green (ICG), manganese ions (Mn²⁺), and arsenate (AsO₄ ^3-) based on electrostatic and coordination interactions, effectively integrating the bimodal imaging ability of magnetic resonance imaging (MRI) and fluorescence (FL) imaging-guided synergistic therapy of photothermal/chemo/chemodynamic therapy within an "all-in-one" theranostic nano-platform. The as-prepared MnAs-ICG nanospike had a uniform size, well-defined nanospike morphology, and impressive loading capacities. The MnAs-ICG nanospike exhibited sensitive responsiveness to the acidic tumor microenvironment with morphological transformation and dimensional variability, enabling deep penetration into tumor tissue and on-demand release of functional therapeutic components. In vitro and in vivo results revealed that MnAs-ICG nanospike showed synergistic tumor-killing effect, prolonged blood circulation and increased tumor accumulation compared to their individual components, effectively resulting in synergistic therapy of photothermal/chemo/chemodynamic therapy with excellent anti-tumor effect. Taken together, this new strategy might hold great promise for rationally engineering multifunctional theranostic nano-platforms for breast cancer treatment.